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    • 80. 发明申请
    • Panel type speaker
    • 面板式扬声器
    • US20070177746A1
    • 2007-08-02
    • US10563356
    • 2004-07-01
    • Kazuhiro KobayashiYoshiro Ohkawa
    • Kazuhiro KobayashiYoshiro Ohkawa
    • H04R25/00
    • H04R7/045
    • A panel type speaker according to the present invention includes an exciter having bimorph type beams which are made of a piezoelectric material and in each of which a flexural oscillation is excited, and a beam holding part for holding the beams, and a diaphragm which is attached to the exciter to generate a flexural oscillation based on oscillation transmitted from the exciter and serves as a transparent protective plate for a display. A bottom surface of the beam holding part of the exciter has an area which is greater than or equal to one-fourth of an area of the largest beam of the beams, and is fixed to a surface of the diaphragm so that the exciter is held on the diaphragm. The panel type speaker has high excitation efficiency and a simple structure, making it easy to add an acoustic characteristic regulating mechanism.
    • 根据本发明的面板式扬声器包括具有由压电材料制成的双压电晶片型梁的激励器,并且其中每一个都被弯曲振荡激励,以及用于保持梁的梁保持部分和附接的隔膜 到激励器产生基于从激励器传播的振荡的弯曲振荡,并且用作显示器的透明保护板。 励磁机的梁保持部分的底面具有大于或等于梁的最大梁的面积的四分之一的面积,并被固定到振动膜的表面,使得激励器保持 在隔膜上。 面板型扬声器具有高的激发效率和简单的结构,使得容易添加声学特性调节机构。